Can use same name for a different product catigory. Same catogory -> somebody gonna geta hurt
Unless it is relaterade to apple(s).
Intel discovered to their cost that you can't trademark a number (hence 80486->pentium). Don't know if one letter is enough :-)
Nobody can trademark the name "Windows" as applied to actual windows. And I'm free to create a trademarked chain of "Windows" restaurants. But I can't call my operating system "Windows" and I'm on thin ice calling any other sort of computer program "Windows."
Clearly the day Audi is threatened by a processor they need to quit building cars.
I wouldn't be surprised if there were auto manufacturers that build processors for vehicle control units completely in-house.
Most are made by specialist companies, think Bosch, Steyr (sp?) and Delphi.
It's ok. As long as this doesn't have AWD it will branch well.